Pool Systems Automation: Difference between revisions
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==== Water Flow ==== | ==== Water Flow ==== | ||
Output water flow is monitored by a paddle wheel flow meter that generates a sine wave with a frequency proportional to the flow rate. A flow "transmitter" (GF Signet 8512) translates that analog output from the flow meter into a 4-20 mA signal proportional to the flow rate. | |||
A value is considered valid if the current measured is greater than or equal to 4 mA (not an open circuit). The low and high thresholds are based upon the required flow turnover rate for the pool volume. | |||
{| class="wikitable" | |||
!Qualifier | |||
!Threshold | |||
!Result | |||
!LCD Notification | |||
!Stack Light | |||
|- | |||
|Operating | |||
|< 570 GPM | |||
|Low Flow Rate | |||
|<tt>Out Flow L</tt> | |||
|Yellow | |||
|- | |||
|Operating | |||
|≥ 570 GPM and < 670 GPM | |||
|Flow Rate OK | |||
|None | |||
|Green (unless overridden) | |||
|- | |||
|Operating | |||
|≥ 670 GPM | |||
Flow Rate High | |||
|<tt>Out Flow H</tt> | |||
|Yellow | |||
|} | |||
When in the <b>Pump Startup</b> or <b>Operating</b> state, the flow rate is briefly shown on the LCD in GPM. If the value is not valid, <tt>Fault</tt> is shown in place of a flow rate value. | |||
==== Water Level ==== | ==== Water Level ==== | ||